Aluminium canteen cup marked GNL

Rare variant small black painted aluminium canteen cup in very good condition. This type of cup is often encountered on 1L Labeflasche but appeared on multiple type of canteens throughout the war. This example is nicely marked GNL which indicates production by Gebrüder Nölle Bestecke Lüdenscheid. Rare aluminium cup which is extremely hard to find as a spare!